[Qemu-devel] [PATCH 4/5] qdev/compat: virtio-balloon-pci 0.10 compatibility.

[Gerd Hoffmann <kraxel@redhat.com>]

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
 hw/pc.c         |    4 ++++
 hw/virtio-pci.c |   16 ++++++++++++++--
 2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/hw/pc.c b/hw/pc.c
index 0574283..0b7c24b 100644
--- a/hw/pc.c
+++ b/hw/pc.c
@@ -1467,6 +1467,10 @@ static QEMUMachine pc_machine_v0_10 = {
             .driver   = "virtio-blk-pci",
             .property = "class",
             .value    = "0x0180", /* PCI_CLASS_STORAGE_OTHER */
+        },{
+            .driver   = "virtio-console-pci",
+            .property = "class",
+            .value    = "0x0380", /* PCI_CLASS_DISPLAY_OTHER */
         },
         { /* end of list */ }
     },
diff --git a/hw/virtio-pci.c b/hw/virtio-pci.c
index 3727b0d..9e5343d 100644
--- a/hw/virtio-pci.c
+++ b/hw/virtio-pci.c
@@ -430,12 +430,16 @@ static void virtio_console_init_pci(PCIDevice *pci_dev)
     VirtIOPCIProxy *proxy = DO_UPCAST(VirtIOPCIProxy, pci_dev, pci_dev);
     VirtIODevice *vdev;
 
+    if (proxy->class_code != PCI_CLASS_COMMUNICATION_OTHER &&
+        proxy->class_code != PCI_CLASS_DISPLAY_OTHER && /* qemu 0.10 */
+        proxy->class_code != PCI_CLASS_OTHERS)          /* qemu-kvm  */
+        proxy->class_code = PCI_CLASS_COMMUNICATION_OTHER;
+
     vdev = virtio_console_init(&pci_dev->qdev);
     virtio_init_pci(proxy, vdev,
                     PCI_VENDOR_ID_REDHAT_QUMRANET,
                     PCI_DEVICE_ID_VIRTIO_CONSOLE,
-                    PCI_CLASS_DISPLAY_OTHER,
-                    0x00);
+                    proxy->class_code, 0x00);
 }
 
 static void virtio_net_init_pci(PCIDevice *pci_dev)
@@ -487,6 +491,14 @@ static PCIDeviceInfo virtio_info[] = {
         .qdev.name = "virtio-console-pci",
         .qdev.size = sizeof(VirtIOPCIProxy),
         .init      = virtio_console_init_pci,
+        .qdev.props = (Property[]) {
+            {
+                .name   = "class",
+                .info   = &qdev_prop_hex32,
+                .offset = offsetof(VirtIOPCIProxy, class_code),
+            },
+            {/* end of list */}
+        },
     },{
         .qdev.name = "virtio-balloon-pci",
         .qdev.size = sizeof(VirtIOPCIProxy),
-- 
1.6.2.5